ganeti-htools Source code Contents Index

Ganeti.HTools.Program.Hspace

Description

Cluster space sizing

Synopsis

options :: [OptType] data Phase = PInitial | PFinal | PTiered data SpecType = SpecNormal | SpecTiered htsPrefix :: String specPrefix :: SpecType -> String specDescription :: SpecType -> String effFn :: (CStats -> Integer) -> (CStats -> Double) -> CStats -> Double memEff :: CStats -> Double dskEff :: CStats -> Double cpuEff :: CStats -> Double statsData :: [(String, CStats -> String)] specData :: [(String, RSpec -> String)] clusterData :: [(String, CStats -> String)] printStats :: Phase -> CStats -> [(String, String)] printFRScores :: List -> List -> [(FailMode, Int)] -> IO () printResults :: Bool -> List -> List -> Int -> Int -> [(FailMode, Int)] -> IO () printFinalHTS :: Bool -> IO () tieredSpecMap :: [Instance] -> [(RSpec, Int)] formatSpecMap :: [(RSpec, Int)] -> [String] formatRSpec :: String -> AllocInfo -> [(String, String)] printAllocationStats :: List -> List -> IO () printKeysHTS :: [(String, String)] -> IO () printInstance :: List -> Instance -> [String] printAllocationMap :: Int -> String -> List -> [Instance] -> IO () formatResources :: a -> [(String, a -> String)] -> String printCluster :: Bool -> CStats -> Int -> IO () printISpec :: Bool -> RSpec -> SpecType -> DiskTemplate -> IO () printTiered :: Bool -> [(RSpec, Int)] -> List -> List -> [(FailMode, Int)] -> IO () printClusterScores :: List -> List -> IO () printClusterEff :: CStats -> IO () failureReason :: [(FailMode, Int)] -> String sortReasons :: [(FailMode, Int)] -> [(FailMode, Int)] runAllocation :: ClusterData -> Maybe AllocResult -> Result AllocResult -> RSpec -> DiskTemplate -> SpecType -> Options -> IO (FailStats, List, Int, [(RSpec, Int)]) instFromSpec :: RSpec -> DiskTemplate -> Int -> Instance main :: Options -> [String] -> IO ()

Documentation

options :: [OptType] Source

Options list and functions.

data Phase Source

The allocation phase we're in (initial, after tiered allocs, or after regular allocation). Constructors PInitial PFinal PTiered

data SpecType Source

The kind of instance spec we print. Constructors SpecNormal SpecTiered

htsPrefix :: String Source

Prefix for machine readable names

specPrefix :: SpecType -> String Source

What we prefix a spec with.

specDescription :: SpecType -> String Source

The description of a spec.

effFn :: (CStats -> Integer) -> (CStats -> Double) -> CStats -> Double Source

Efficiency generic function.

memEff :: CStats -> Double Source

Memory efficiency.

dskEff :: CStats -> Double Source

Disk efficiency.

cpuEff :: CStats -> Double Source

Cpu efficiency.

statsData :: [(String, CStats -> String)] Source

Holds data for converting a CStats structure into detailed statictics.

specData :: [(String, RSpec -> String)] Source

List holding RSpec formatting information.

clusterData :: [(String, CStats -> String)] Source

List holding CStats formatting information.

printStats :: Phase -> CStats -> [(String, String)] Source

Function to print stats for a given phase.

printFRScores :: List -> List -> [(FailMode, Int)] -> IO () Source

Print failure reason and scores

printResults :: Bool -> List -> List -> Int -> Int -> [(FailMode, Int)] -> IO () Source

Print final stats and related metrics.

printFinalHTS :: Bool -> IO () Source

Prints the final OK marker in machine readable output.

tieredSpecMap :: [Instance] -> [(RSpec, Int)] Source

Compute the tiered spec counts from a list of allocated instances.

formatSpecMap :: [(RSpec, Int)] -> [String] Source

Formats a spec map to strings.

formatRSpec :: String -> AllocInfo -> [(String, String)] Source

Formats "key-metrics" values.

printAllocationStats :: List -> List -> IO () Source

Shows allocations stats.

printKeysHTS :: [(String, String)] -> IO () Source

Format a list of key/values as a shell fragment.

printInstance :: List -> Instance -> [String] Source

Converts instance data to a list of strings.

printAllocationMap :: Int -> String -> List -> [Instance] -> IO () Source

Optionally print the allocation map.

formatResources :: a -> [(String, a -> String)] -> String Source

Formats nicely a list of resources.

printCluster :: Bool -> CStats -> Int -> IO () Source

Print the cluster resources.

printISpec :: Bool -> RSpec -> SpecType -> DiskTemplate -> IO () Source

Prints the normal instance spec.

printTiered :: Bool -> [(RSpec, Int)] -> List -> List -> [(FailMode, Int)] -> IO () Source

Prints the tiered results.

printClusterScores :: List -> List -> IO () Source

Displays the initial/final cluster scores.

printClusterEff :: CStats -> IO () Source

Displays the cluster efficiency.

failureReason :: [(FailMode, Int)] -> String Source

Computes the most likely failure reason.

sortReasons :: [(FailMode, Int)] -> [(FailMode, Int)] Source

Sorts the failure reasons.

runAllocation Source

:: ClusterData Cluster data -> Maybe AllocResult Optional stop-allocation -> Result AllocResult Allocation result -> RSpec Requested instance spec -> DiskTemplate Requested disk template -> SpecType Allocation type -> Options CLI options -> IO (FailStats, List, Int, [(RSpec, Int)]) Runs an allocation algorithm and saves cluster state.

instFromSpec :: RSpec -> DiskTemplate -> Int -> Instance Source

Create an instance from a given spec.

main :: Options -> [String] -> IO () Source

Main function.

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